# 하이디 vs 리터러시M

The clearest difference is review sentiment: 리터러시M at 100% against 하이디's 33%. 리터러시M also leads on update cadence (fortnightly vs every 6 weeks). 하이디's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. 리터러시M sells 1 one-off in-app purchase. 하이디 asks for nothing beyond the download.

하이디 ships an update every 6 weeks, 리터러시M fortnightly. The most recent releases landed on August 17, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | 하이디 | 리터러시M |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 87 MB | 185 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Huraypositive Corp.](https://appshunter.io/developer/634872253) | [케이바이오헬스케어](https://appshunter.io/developer/1596853355) |

## What reviewers say

### 하이디

[App page](https://appshunter.io/ios/app/id1485663548)

**In-app purchases:** none


### 리터러시M

[App page](https://appshunter.io/ios/app/m/id1596853353)

Manage your medications, view hospital test results, and track personal health data. Receive personalized health information and access curated healthcare videos.

**Highlights:** Medication management and alerts, Hospital test result access, Personalized health chart, Health literacy information, Curated health videos

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1-Year Subscription | $49.99 | one-time |


## Frequently asked questions

### Is 하이디 free?

하이디 is free to download, with no in-app purchases.

### Is 리터러시M free?

리터러시M is free to download, with in-app purchases available.

### Do 하이디 or 리터러시M have ads?

리터러시M shows ads; 하이디 does not.

### Which is updated more often, 하이디 or 리터러시M?

하이디 ships an update every 6 weeks, and 리터러시M fortnightly. Most recently, 하이디 was updated on August 17, 2026 and 리터러시M on September 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*